?? ucos_ii.h
字號:
#if OS_LOWEST_PRIO <= 63
INT8U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
INT8U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
#else
INT16U OSEventTbl[OS_EVENT_TBL_SIZE]; /* List of tasks waiting for event to occur */
INT16U OSEventGrp; /* Group corresponding to tasks waiting for event to occur */
#endif
} OS_SEM_DATA;
#endif
/*
*********************************************************************************************************
* TASK STACK DATA
*********************************************************************************************************
*/
#if OS_TASK_CREATE_EXT_EN > 0
typedef struct os_stk_data {
INT32U OSFree; /* Number of free bytes on the stack */
INT32U OSUsed; /* Number of bytes used on the stack */
} OS_STK_DATA;
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* TASK CONTROL BLOCK
*********************************************************************************************************
*/
typedef struct os_tcb {
OS_STK *OSTCBStkPtr; /* Pointer to current top of stack */
#if OS_TASK_CREATE_EXT_EN > 0
void *OSTCBExtPtr; /* Pointer to user definable data for TCB extension */
OS_STK *OSTCBStkBottom; /* Pointer to bottom of stack */
INT32U OSTCBStkSize; /* Size of task stack (in number of stack elements) */
INT16U OSTCBOpt; /* Task options as passed by OSTaskCreateExt() */
INT16U OSTCBId; /* Task ID (0..65535) */
#endif
struct os_tcb *OSTCBNext; /* Pointer to next TCB in the TCB list */
struct os_tcb *OSTCBPrev; /* Pointer to previous TCB in the TCB list */
#if (OS_EVENT_EN) || (OS_FLAG_EN > 0)
OS_EVENT *OSTCBEventPtr; /* Pointer to event control block */
#endif
#if (OS_EVENT_EN) && (OS_EVENT_MULTI_EN > 0)
OS_EVENT **OSTCBEventMultiPtr; /* Pointer to multiple event control blocks */
#endif
#if ((OS_Q_EN > 0) && (OS_MAX_QS > 0)) || (OS_MBOX_EN > 0)
void *OSTCBMsg; /* Message received from OSMboxPost() or OSQPost() */
#endif
#if (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
#if OS_TASK_DEL_EN > 0
OS_FLAG_NODE *OSTCBFlagNode; /* Pointer to event flag node */
#endif
OS_FLAGS OSTCBFlagsRdy; /* Event flags that made task ready to run */
#endif
INT16U OSTCBDly; /* Nbr ticks to delay task or, timeout waiting for event */
INT8U OSTCBStat; /* Task status */
INT8U OSTCBStatPend; /* Task PEND status */
INT8U OSTCBPrio; /* Task priority (0 == highest) */
INT8U OSTCBX; /* Bit position in group corresponding to task priority */
INT8U OSTCBY; /* Index into ready table corresponding to task priority */
#if OS_LOWEST_PRIO <= 63
INT8U OSTCBBitX; /* Bit mask to access bit position in ready table */
INT8U OSTCBBitY; /* Bit mask to access bit position in ready group */
#else
INT16U OSTCBBitX; /* Bit mask to access bit position in ready table */
INT16U OSTCBBitY; /* Bit mask to access bit position in ready group */
#endif
#if OS_TASK_DEL_EN > 0
INT8U OSTCBDelReq; /* Indicates whether a task needs to delete itself */
#endif
#if OS_TASK_PROFILE_EN > 0
INT32U OSTCBCtxSwCtr; /* Number of time the task was switched in */
INT32U OSTCBCyclesTot; /* Total number of clock cycles the task has been running */
INT32U OSTCBCyclesStart; /* Snapshot of cycle counter at start of task resumption */
OS_STK *OSTCBStkBase; /* Pointer to the beginning of the task stack */
INT32U OSTCBStkUsed; /* Number of bytes used from the stack */
#endif
#if OS_TASK_NAME_SIZE > 1
INT8U OSTCBTaskName[OS_TASK_NAME_SIZE];
#endif
} OS_TCB;
/*$PAGE*/
/*
************************************************************************************************************************
* TIMER DATA TYPES
************************************************************************************************************************
*/
#if OS_TMR_EN > 0
typedef void (code *OS_TMR_CALLBACK)(void *ptmr, void *parg);
typedef struct os_tmr {
INT8U OSTmrType; /* Should be set to OS_TMR_TYPE */
OS_TMR_CALLBACK OSTmrCallback; /* Function to call when timer expires */
void *OSTmrCallbackArg; /* Argument to pass to function when timer expires */
void *OSTmrNext; /* Double link list pointers */
void *OSTmrPrev;
INT32U OSTmrMatch; /* Timer expires when OSTmrTime == OSTmrMatch */
INT32U OSTmrDly; /* Delay time before periodic update starts */
INT32U OSTmrPeriod; /* Period to repeat timer */
#if OS_TMR_CFG_NAME_SIZE > 0
INT8U OSTmrName[OS_TMR_CFG_NAME_SIZE]; /* Name to give the timer */
#endif
INT8U OSTmrOpt; /* Options (see OS_TMR_OPT_xxx) */
INT8U OSTmrState; /* Indicates the state of the timer: */
/* OS_TMR_STATE_UNUSED */
/* OS_TMR_STATE_RUNNING */
/* OS_TMR_STATE_STOPPED */
} OS_TMR;
typedef struct os_tmr_wheel {
OS_TMR *OSTmrFirst; /* Pointer to first timer in linked list */
INT16U OSTmrEntries;
} OS_TMR_WHEEL;
#endif
/*$PAGE*/
/*
*********************************************************************************************************
* GLOBAL VARIABLES
*********************************************************************************************************
*/
OS_EXT INT32U OSCtxSwCtr; /* Counter of number of context switches */
#if (OS_EVENT_EN) && (OS_MAX_EVENTS > 0)
OS_EXT OS_EVENT *OSEventFreeList; /* Pointer to list of free EVENT control blocks */
OS_EXT OS_EVENT OSEventTbl[OS_MAX_EVENTS];/* Table of EVENT control blocks */
#endif
#if (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
OS_EXT OS_FLAG_GRP OSFlagTbl[OS_MAX_FLAGS]; /* Table containing event flag groups */
OS_EXT OS_FLAG_GRP *OSFlagFreeList; /* Pointer to free list of event flag groups */
#endif
#if OS_TASK_STAT_EN > 0
OS_EXT INT8U OSCPUUsage; /* Percentage of CPU used */
OS_EXT INT32U OSIdleCtrMax; /* Max. value that idle ctr can take in 1 sec. */
OS_EXT INT32U OSIdleCtrRun; /* Val. reached by idle ctr at run time in 1 sec. */
OS_EXT BOOLEAN OSStatRdy; /* Flag indicating that the statistic task is rdy */
OS_EXT OS_STK OSTaskStatStk[OS_TASK_STAT_STK_SIZE]; /* Statistics task stack */
#endif
OS_EXT INT8U OSIntNesting; /* Interrupt nesting level */
OS_EXT INT8U OSLockNesting; /* Multitasking lock nesting level */
OS_EXT idata INT8U OSPrioCur; /* Priority of current task */
OS_EXT idata INT8U OSPrioHighRdy; /* Priority of highest priority task */
#if OS_LOWEST_PRIO <= 63
OS_EXT INT8U OSRdyGrp; /* Ready list group */
OS_EXT INT8U OSRdyTbl[OS_RDY_TBL_SIZE]; /* Table of tasks which are ready to run */
#else
OS_EXT INT16U OSRdyGrp; /* Ready list group */
OS_EXT INT16U OSRdyTbl[OS_RDY_TBL_SIZE]; /* Table of tasks which are ready to run */
#endif
OS_EXT idata BOOLEAN OSRunning; /* Flag indicating that kernel is running */
OS_EXT INT8U OSTaskCtr; /* Number of tasks created */
OS_EXT volatile INT32U OSIdleCtr; /* Idle counter */
OS_EXT OS_STK OSTaskIdleStk[OS_TASK_IDLE_STK_SIZE]; /* Idle task stack */
OS_EXT idata OS_TCB *OSTCBCur; /* Pointer to currently running TCB */
OS_EXT OS_TCB *OSTCBFreeList; /* Pointer to list of free TCBs */
OS_EXT idata OS_TCB *OSTCBHighRdy; /* Pointer to highest priority TCB R-to-R */
OS_EXT OS_TCB *OSTCBList; /* Pointer to doubly linked list of TCBs */
OS_EXT OS_TCB *OSTCBPrioTbl[OS_LOWEST_PRIO + 1];/* Table of pointers to created TCBs */
OS_EXT OS_TCB OSTCBTbl[OS_MAX_TASKS + OS_N_SYS_TASKS]; /* Table of TCBs */
#if OS_TICK_STEP_EN > 0
OS_EXT INT8U OSTickStepState; /* Indicates the state of the tick step feature */
#endif
#if (OS_MEM_EN > 0) && (OS_MAX_MEM_PART > 0)
OS_EXT OS_MEM *OSMemFreeList; /* Pointer to free list of memory partitions */
OS_EXT OS_MEM OSMemTbl[OS_MAX_MEM_PART];/* Storage for memory partition manager */
#endif
#if (OS_Q_EN > 0) && (OS_MAX_QS > 0)
OS_EXT OS_Q *OSQFreeList; /* Pointer to list of free QUEUE control blocks */
OS_EXT OS_Q OSQTbl[OS_MAX_QS]; /* Table of QUEUE control blocks */
#endif
#if OS_TIME_GET_SET_EN > 0
OS_EXT volatile INT32U OSTime; /* Current value of system time (in ticks) */
#endif
#if OS_TMR_EN > 0
OS_EXT INT16U OSTmrFree; /* Number of free entries in the timer pool */
OS_EXT INT16U OSTmrUsed; /* Number of timers used */
OS_EXT INT32U OSTmrTime; /* Current timer time */
OS_EXT OS_EVENT *OSTmrSem; /* Sem. used to gain exclusive access to timers */
OS_EXT OS_EVENT *OSTmrSemSignal; /* Sem. used to signal the update of timers */
OS_EXT OS_TMR OSTmrTbl[OS_TMR_CFG_MAX]; /* Table containing pool of timers */
OS_EXT OS_TMR *OSTmrFreeList; /* Pointer to free list of timers */
OS_EXT OS_STK OSTmrTaskStk[OS_TASK_TMR_STK_SIZE];
OS_EXT OS_TMR_WHEEL OSTmrWheelTbl[OS_TMR_CFG_WHEEL_SIZE];
#endif
extern INT8U const OSUnMapTbl[256]; /* Priority->Index lookup table */
/*$PAGE*/
/*
*********************************************************************************************************
* FUNCTION PROTOTYPES
* (Target Independent Functions)
*********************************************************************************************************
*/
/*
*********************************************************************************************************
* MISCELLANEOUS
*********************************************************************************************************
*/
#if (OS_EVENT_EN)
#if (OS_EVENT_NAME_SIZE > 1)
INT8U OSEventNameGet (OS_EVENT *pevent,
INT8U *pname,
INT8U *perr);
void OSEventNameSet (OS_EVENT *pevent,
INT8U *pname,
INT8U *perr);
#endif
#if (OS_EVENT_MULTI_EN > 0)
INT16U OSEventPendMulti (OS_EVENT **pevents_pend,
OS_EVENT **pevents_rdy,
void **pmsgs_rdy,
INT16U timeout,
INT8U *perr);
#endif
#endif
/*
*********************************************************************************************************
* EVENT FLAGS MANAGEMENT
*********************************************************************************************************
*/
#if (OS_FLAG_EN > 0) && (OS_MAX_FLAGS > 0)
#if OS_FLAG_ACCEPT_EN > 0
OS_FLAGS OSFlagAccept (OS_FLAG_GRP *pgrp,
OS_FLAGS flags,
INT8U wait_type,
INT8U *perr) reentrant;
#endif
OS_FLAG_GRP *OSFlagCreate (OS_FLAGS flags,
INT8U *perr) reentrant;
#if OS_FLAG_DEL_EN > 0
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